5 Common Causes of Household Mold Growth

March 15, 2023

Mold can spread quickly, so it's important to watch for signs of mold in your home. If you suspect mold in your home, mold inspections can help you get to the bottom of the problem. Watch out for these common causes of mold growth.



1. Wet Basements


Since basements are underground, they're exposed to more moisture than other parts of the home. According to This Old House, approximately 60% of homes in the U.S. have damp basements, while 38% are likely to develop basement mold. Check your basement regularly for mold so that you can keep it from spreading to the rest of your home.



2. Ventilation Issues


If a home isn't well-ventilated, the air in the home can become stagnant. Mold thrives in the stagnant, damp air. Signs that your home is poorly ventilated include strong smells that don't seem to fade and condensation on windows and doors. Opening windows and running fans can help air circulate throughout your home. Still, you'll also need to deal with any mold caused by that poor ventilation.



3. High Humidity Levels


In humid climates, there are high moisture levels in the air. That humidity puts homes at increased risk for mold. If the area you live in is humid, you may want to invest in a dehumidifier to keep humidity levels under control. Regular mold inspections can also help you eliminate mold before it spreads.



4. Leaks


Any leak can lead to mold, including pipe, roof, and ventilation leaks. If you have leaky pipes, mold may form beneath your under-sink cupboards or behind your drywall. Leaks can also cause mold to form in your attic and your ceiling. Common signs of leaks include wet spots throughout the home, increased water bills, and changes in water pressure.



5. Damaged Walls


When walls have cracks, holes, or other signs of damage, water can get inside your walls, causing mold to form. While it's not always possible to spot mold behind walls, there's a good chance you have a mold problem if your walls are damp. It's best to check for mold before repairing your damaged walls. That way, you'll have a chance to remove the mold.


Mold thrives in dark, damp environments. Whether your home is humid, poorly ventilated, or leaky, moisture is a frequent cause of mold growth. Mold inspections are the best way to find mold in your home and remove it. Contact ASAP Environmental Inc if you have concerns about mold.

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